# SDR ASAA2012091992917

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2012
- Submitted: September 21, 2012
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 15,571 hours, 4,937 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [4997 · APU System Wiring](https://openairdocs.org/jasc/4997)
- Part: Connector
- Part number: BACC63CN2430SN
- Condition: Unsecure
- Location: Apu Starter Gen
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2012091992917

## Discrepancy

APU WILL NOT START.  APU BITE TEST SHOWS MX MESSAGE 49-41254 START CONVERTER UNIT SHOWS START SYS INOPERATIVE.  ACCOMPLISHED FIM 49-40-00-810-821. FOUND STARTER GENERATOR WIRE HARNESS CONNECTOR D11118P NOT SEATED PROPERLY.  TIGHTENED CONNECTOR, APU STARTS NORMALLY.

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